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I – Inboard Mount
O – Outboard Mount
X – Balanced
(tp) – Patented TruPilot Feature
(a) – Unequally spaced exciter ring mounting
(b) – Equally spaced exciter ring mounting
(c) – Peripheral mount pilot
(d) – Furnished with set screw holes
(e) – Notched
(f) – For ball seat or hub piloted applications
(o) – OEM captive part number
Active Part Numbers
In Order by Part Number
Active Part Numbers
In Order by Size
Obsolete Part Numbers
In Order by Part Number
Gunite
No.
Drum
Weight
Drum
Mount
Drum
Type
Wheel
Type
Brake Size
Overall
Depth
Width
of Brake
Surface
Pilot
Dia.
Bolt
Circle
Dia.
Bolt Holes
Special Information
No.
Size
3521
75
O BCA Disc
15.00x4.00 7.84
4.44
8.66 11.25
10
1.25
3521X
75
O BCA Disc
15.00x4.00 7.84
4.44
8.66 11.25
10
1.25
3524
56
I
ACG Disc
15.00x3.50 6.54
4.00 9.44
11.25
10
1.25
3524X 56
I
ACG Disc
15.00x3.50 6.54 4.00 9.44
11.25
10
1.25
3532 (o)
87
I
AAA Spoke
15.00x6.00 7.47
6.50 11.25 12.75
6
0.65
3532X
(o)
87
I
AAA Spoke
15.00x6.00 7.47
6.50 11.25 12.75
6
0.65
3533 (o)
104
I
AAA Spoke
17.00x6.00 7.38 6.50 11.25 12.75
6
0.65
3533X
(o)
104
I
AAA Spoke
17.00x6.00 7.38 6.50 11.25 12.75
6
0.65
3535
76
O BAG Disc
15.50x5.00 7.76 5.38 11.18 13.18
10
1.04 Furnished with set screw
holes.
3535X 76
O BAG Disc
15.50x5.00 7.76 5.38 11.18 13.18
10
1.04 Furnished with set screw
holes.
3537
91
O BAG Disc
15.50x6.00 9.20 6.24
11.05 13.18
10
1.04 Furnished with set screw
holes.
3537X 91
O BAG Disc
15.50x6.00 9.20 6.24
11.05 13.18
10
1.04 Furnished with set screw
holes.
3543
112
O BCA Disc
16.50x7.00 10.38 7.44
8.53 11.25
10
0.81
3543X 112
O BCA Disc
16.50x7.00 10.38 7.44
8.53 11.25
10
0.81
3544
112
I
ABA Spoke
16.50x7.00 9.00 7.60 11.25 12.75
6
0.65
3544X 112
I
ABA Spoke
16.50x7.00 9.00 7.60 11.25 12.75
6
0.65
3552 (o)
60
I
ABG Spoke
15.00x4.00 5.54
4.44
9.18 11.25
6
0.78
3552A
(o)
60
I
ABG Spoke
15.00x4.00 5.54
4.44
9.18 11.25
5
0.78
3552AX
(o)
60
I
ABG Spoke
15.00x4.00 5.54
4.44
9.18 11.25
5
0.78
3552B
(o)
60
I
ABG Spoke
15.00x4.00 5.54
4.44
9.18 11.25
10
0.78
3552BX
(o)
60
I
ABG Spoke
15.00x4.00 5.54
4.44
9.18 11.25
10
0.78
3552X
(o)
60
I
ABG Spoke
15.00x4.00 5.54
4.44
9.18 11.25
6
0.78
3553 (o)
71
I
AAG Spoke
16.50x5.00 6.28 5.44
9.18 11.25
6
0.78
3553A
(o)
71
I
AAG Spoke
16.50x5.00 6.28 5.44
9.18 11.25
5
0.78
3553AX
(o)
71
I
AAG Spoke
16.50x5.00 6.28 5.44
9.18 11.25
5
0.78
3553B
(o)
71
I
AAG Spoke
16.50x5.00 6.28 5.44
9.18 11.25
5/6
0.78
3553BX
(o)
71
I
AAG Spoke
16.50x5.00 6.28 5.44
9.18 11.25
5/6
0.78
3553X
(o)
71
I
AAG Spoke
16.50x5.00 6.28 5.44
9.18 11.25
6
0.78
3556 132
I
AAA Spoke
16.50x7.00 8.38 7.60 9.44
11.00
6
0.65 Severe duty version of
2983C.
3556 132
I
AAA Spoke
16.50x7.00 8.38 7.60 9.44
11.00
5
0.78
Severe duty version of
2983C.
3556X 132
I
AAA Spoke
16.50x7.00 8.38 7.60 9.44
11.00
6
0.65 Severe duty version of
2983CX.
3556X 132
I
AAA Spoke
16.50x7.00 8.38 7.60 9.44
11.00
5
0.78
Severe duty version of
2983CX.
3557AX 84
I
ADA Disc
12.25x7.50 10.47
8.24
7.12
8.75
6
0.81
For 15 inch disc wheel
hubs.
3557X 84
I
ADA Disc
12.25x7.50 10.47
8.24
7.12
8.75
10
0.81
For 15 inch disc wheel
hubs.
3560A 122
I
AAA Spoke
16.50x7.00 8.38 7.60 9.44
11.00
5
0.78
3560A 122
I
AAA Spoke
16.50x7.00 8.38 7.60 9.44
11.00
6
0.65
3560AX 122
I
AAA Spoke
16.50x7.00 8.38 7.60 9.44
11.00
5
0.78
3560AX 122
I
AAA Spoke
16.50x7.00 8.38 7.60 9.44
11.00
6
0.65